ics9248-102 Integrated Device Technology, ics9248-102 Datasheet - Page 4

• Manufacturer Part Number: ics9248-102
• Description: Motherboard Single Chip Clock Solution For Pentium Ii/iii And K6 Processors, Using Sis540/sis630 Style Chipset
• Manufacturer: Integrated Device Technology

Note: PWD = Power-Up Default
Note1:
Default at power-up will be for latched logic inputs to define frequency, as displayed by Bit 3.
The I
ICS9248-102
Serial Configuration Command Bitmap
Byte0: Functionality and Frequency Select Register (default = 0)
B
i B
t i
i B
i B
i B
B
6 t
, 7
3 t
1 t
0 t
t i
2
4 :
C readback for Bits 7, 2, 6:4 indicate the revision code.
, 2
- 1
- 1
- 1
- 0
- 0
- 0
B
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
T
7 t i
F
p S
F
N
R
i r
e r
e r
n u
o
a t s
e r
u q
m r
u q
i n
d a
B
e t
n e
n e
l a
g n
2 t i
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
l a
p S
y c
y c
o l
c e
s i
s i
B
t u
u r t
6 t i
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
e s
e s
u p
m
e l
e l
s t
t c
t c
E
B
d e
d e
a n
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5 t i
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
l b
y b
y b
d e
B
i B
a h
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4 t i
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
7 t
d r
w
2 ,
a
e r
6 ,
6 1
0 1
3 1
0 1
3 1
1 1
1 1
2 1
3 1
4 1
4 1
4 1
6 1
5 1
3 1
3 1
6 1
0 1
0 1
0 1
1 1
6
9
7
8
6
6
6
9
9
9
8
e s
4 :
C
. 6
. 6
. 6
. 0
. 5
. 5
. 6
. 6
. 5
. 3
. 3
. 0
. 3
. 3
. 6
. 6
. 0
. 3
. 5
. 3
. 0
. 5
. 0
. 0
. 5
. 7
P
. 0
. 0
. 0
. 2
. 8
. 0
e l
2 8
2 8
2 8
3 3
0 0
0 0
0 0
6 6
5 2
0 0
4 3
U
D
3 2
4 3
4 6
3 2
3 2
4 6
0 0
1 0
0 0
0 0
3 3
0 0
3 3
5 2
2 0
0 0
0 0
5 0
9 5
, t c
1 0
1 0
s e
L
i r c
t a
i t p
h c
n o
d e
S
6 1
0 1
0 1
0 1
0 1
4 1
3 1
4 1
5 1
2 1
4 1
4 1
4 1
2 1
3 1
6 1
0 1
0 1
0 1
0 1
3 1
3 1
5 1
3 1
2 1
1 1
1 1
D
9
6
8
9
9
n I
. 6
. 6
. 3
. 0
. 5
R
. 0
. 0
. 0
. 0
. 0
. 0
. 3
. 3
. 0
. 3
. 6
. 2
. 1
. 6
. 0
. 0
. 0
. 0
. 5
. 0
. 3
. 7
. 3
. 8
. 5
. 7
. 0
u p
0 0
0 0
A
5 7
0 3
5 2
0 2
0 0
0 0
0 0
0 0
0 0
0 1
0 0
0 0
3 3
7 6
0 5
0 0
0 0
0 0
0 0
1 0
0 0
3 3
0 0
6 3
0 0
1 0
0 0
5 0
9 5
1 0
M
s t
4
3
3
3
3
3
3
3
3
3
2
3
3
3
3
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
3 3
P
. 7
. 7
. 7
. 0
. 1
. 1
. 7
. 7
. 7
. 5
. 3
. 2
. 3
. 7
. 1
. 5
. 6
. 8
. 0
. 4
. 5
. 6
. 6
. 6
. 3
. 3
. 3
. 3
. 3
. 3
. 3
I C
0 9
1 4
1 4
9 5
1 4
1 4
1 4
9 5
1 4
1 4
8 7
0 0
7 6
7 6
4 3
7 6
7 6
3 3
3 3
8 0
3 3
0 5
5 2
0 0
3 .
5 7
4 3
0 0
0 5
0 0
6 2
7 6
0
0
0
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
o t
o t
o t
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
. 0
S S
I
2
0 -
0 -
0 -
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
5 2
C is a trademark of Philips Corporation
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0
N
P
0 0
W
t o
0
0
1
1 0
1 e
D